Hat-trimming machine.



O. A. BINGAMAN.

HAT TRIMMIIYIG MACHINE. I APPLICATION FILED JAN. 9. 1911.

1,003,420. Patented Sept. 19,1911.

COLUMBIA PLANOGRAPH Cp.,WASHlNOTON, D. C.

UNITED STATES PATENT OFFICE.

CHARLES A. BINGAMAN, 0F READING, PENNSYLVANIA.

HAT-TRIMMING MACHINE.

Specification of Letters Patent. Patented Sept. 19, 1911. Application filed January '9, 1911.

Serial No. 601,634.

To all whom it may concern:

Be it known that I, OHARLns A. BINGAMAN, a citizen of the United States, residing at Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Hat-Trimming Machines, of which the following is a specification.

This invention relates to improvements in machines for trimming the edges of ladies wool and felt hats and it is intended more particularly for use in trimming both the outer and inner edges of the ring that forms the brim of the hat. In hats of this class, the crown and brim portions are each made separately and joined together to form the hat. Heretofore the outer edge of the brim has been trimmed on a machine but the inner edge has been trimmed by hand and this has been found unsatisfactory.

My invention relates particularly to that portion of the machine which provides for trimming the inner edge.

The invention consists of means for opening the lower feed roll from contact with the upper roll and cutting knife, so that the ring forming the hat brim may be inserted between the rolls until the inner edge thereof may be engaged by the cutting knife.

The invention is more fully described in the following specification and clearly illustrated in the accompanying drawing, in which Figure l is a side elevation of my ma chine. Fig. 2 is a front end View. Fig. 3 is a detail showing the feed rolls and cutting knife, in section.

The numeral 1 designates a support for the machine. The machine consists of a base plate 8 and a U-shaped frame 4. The upper arm of the frame carries a housing 2 in which is located a train of gears 5, and to which is secured the upper feed roll 7 and the cutting knife 8, while the lower arm of the frame carries a head piece 9 in which the lower feed roll 10 is secured.

The numeral 11 designates the belt pulley and 12 is a train of gears through which motion is transmitted to the shafts 13 and 14. The upper shaft 13 carries the train of gears 5 and through them, transmits motion to a shaft 15 in the housing 2 on which is located the upper feed roll 7 and the knife 8. The roll 7 is of larger internal diameter than the shaft so as to permit hats of different thicknesses to be inserted between the rolls and it is held against lateral movement on the shaft 15 by means of plates 7*.

The lower shaft 14 is provided with a ball faced collar 16, held against turning thereon by a key 16 and this collar bears 1n a concaved depression 17 in the frame, and the extremity of the shaft 14 is supported in an upright 18 on the frame and a spring 19 around the shaft tends to keep the collar seated in its depression. The end of the shaft is provided with a trunnion 20 in which it is loosely mounted, so as to permit lateral movement therein, and which ermlts the opposite end of the shaft to be swung down around the center of the trunnion. The opposite or free end of the shaft 14 carries the lower feed roll 10. This roll 1s backed by a spring 21 which surrounds the shaft and which is in turn backed by a reguhollow construction, and a coiled spring 27 is seated therein, around the rod 24 and tends to keep the feed roll in raised position, in contact with the upper feed roll 7. To a lug on the under side of the frame, I secure a locking lever 28, having a handle 29 and adapted to engage the lower face of the head 25 with its beveled face 30.

When the parts are in the position shown in the drawing, the feed rolls are held in contact with each other, and when a hat brim is to be trimmed on its outer edge, the brim is inserted between the rolls as usual, the upper roll being loose permitting the entrance of varied thicknesses, and the guide 81, which is removably secured to the head piece 9 will permit the brim to be properly trimmed around the outer edge. .When, however, the inner edge of the brim portion is to be trimmed, the rolls must be opened sufficiently to permit the material to be inserted until the inner edge is inline with the knife and I accomplish this in the following manner.

The head piece 25 on the rod 24 is formed with an extension 32, and I secure to the frame, at the point 33, a pivoted lever 34 whose forward or free end engages this extension on its upper face. The opposite end of the lever 34 is pivotally secured to a vertical rod 35 at its upper end, while its lower end is pivoted to a bar 36 which is pivotally mounted at its center to a lug 87 on the under side of the support. The opposite end of this bar is in turn pivoted to a rod 88 whose lower end is pivoted to a foot lever 39, which is secured to the support. This rod 38 is provided with a spring 40, secured to the support and exerting a normal upward tension on the foot lever.

When it is desired to open the feed rolls, the guide 31 is removed from the head piece byremoving the screw 31*, the locking lever 28 is swung out of engagement with the head of the rod 24, the foot lever 39 is depressed,

raising the rod 35 and through the lever 34 the rod 24L is pressed down, compressing the spring 27. The lever 34 is formed with an integral shaft 38 which passes through the lug on the frame and on the forward or front end of this shaft is rigidly secured a short bar 41. T0 t he freeend of this bar is pivoted a longer bar 42 whose opposite or rear end is pivoted to the lower endof a lever 48 which lever is pivotally mounted at its center to a lug on the frame. The upper end of this lever is bifurcated at 44 and fits partially around the shaft 14 and the forward faces of thisbifurcated endbear against the head of the regulating screw 22;

When the foot lever'is depressed, as just described, and the lever 34; turns on its shaft 33, the bar 42 will turnthe lever 43 and causethe upper ends to press the screw 22,

and with it'the shaft 14 and the roll 10, slightly forward, which movement is per-4 mitted by reason of the fact that the shaft 1a is slidably mounted in the trunnion. The first effect of this movement will free the roll 10 from contact with the knife 8 and the further movement of the foot lever will, through the movement of the parts just described, cause the shaft 14: to swing down- -ward on the trunnion 20. This will open the rolls sufficiently to admit the entrance of thehat brim, and when entered to the desired position, the foot lever is releasedand the combinedaction of the spring on the foot lever and the spring'beneath thelower feed roll will return the parts to normal position andthe trimming of the inner edge may be accomplished with the same ease as may the outer edge.

I am aware that machines have been devised for trimming the outer edges of a hat brim, andI do not claim this construction as my invention, but

'What I claim and desire to secure by Letters Patent is 1. In a hat trimming machine comprising a frame, feed rolls and a cutting knife, the combination therewith of a swinging shaft slidably mounted-in a bearing in the frame, which shaft carries one of the feed rolls; means operated by a foot lever for moving said shaft simultaneously, in its bearing and away from the upper feed roll, and means for locking the feed rolls in contact with each other.

2. In a hat trimming machine comprising a frame, feed rolls, a cutting knife and means for revolving the rolls and the knife, the combination therewith of a shaft slidably mounted in a trunnion and capable of swinging on the center of the trunnion, sald shaft carrying the lower feed roll; a locking lever for securing the'feed rolls in contact with each other and means operated by a foot lever for moving said shaft slidably in its bearing and around the trunnion simultaneously. I

3. In a hat trimming machine comprising a frame, feed rolls and a cutter knife, the

combination therewith of a swinging shaft loosely mounted in a bearing in the frame, which shaft" carries one of the feed rolls; means operated by a foot lever for moving said shaft slidably in its bearing and away from the upper feed roll and a locking lever'for securing the feed rolls in contact with each other. I

In testimony whereof Iaflix my signature, in' presence of twowitnesses. CHARLES A. BINGAMAN.

Witnesses:

' E. B. WELDER,

ED. A. KELLY.

Copies of this patent maybe obtained for five cents each, by addressing the Gommissionerof IEatents,

.. Washington, 'D. C. 

